For the last year of depreciation, DB equals the remaining depreciable value for the prior year.
Sum and Statistics
n=number of items in the list. x’=an element of the sorted list.
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| Σxi |
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TOTAL | = Σxi | MEAN |
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MEDIAN = xj′ for odd n, where |
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MEDIAN | = |
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| STDEV = |
| Σ(xi | − | x | )2 |
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| n | − 1 |
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W.MN | = | Σ (yi - xi ) | G.SD = | Σyi | xi2 − (Σyi ) | x | 2 | ||||||||||||||||||
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| (Σyi ) | − 1 |
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RANGE = MAX - MIN
Forecasting
| Model | Transformation | Xi | Yi |
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LIN | y = B + Mx | y = B + Mx | xi | yi |
EXP | y = BeMx | In y = ln B + Mx | x | ln y |
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LOG | y = B + M ln x | y = B + M ln x | ln xi | yi |
PWR | y = BxM | ln y = ln B + M ln x | ln x | ln y |
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B: More About Calculations 251
File name :